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C3945-CME-SRST/K9
3945 Voice Bundle w/ PVDM3-64,FL-CME-SRST-25, UC License PAK
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C3945-CME-SRST/K9 is a high-performance enterprise router built with a modular architecture designed to deliver integrated voice, video, and data services with unmatched reliability. It offers flexible power options including redundant AC power supplies, multiple WAN and LAN interfaces, and robust throughput capabilities tailored for demanding business environments.
Optimized for secure remote connectivity and branch-office deployments, this device supports advanced VPN features, high availability, and built-in firewall protection to ensure data integrity and operational continuity. Its modular slots allow for scalable expansion and redundant configurations, making it ideal for enterprise, distributed campus, and mission-critical use cases.
C3945-CME-SRST/K9 price is $7,141.00, a 51.7% saving from the Cisco list price of $14,795.00. C3945-CME-SRST/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C3945-CME-SRST/K9 for additional pricing. Browse the full Router Isr 3900 series or explore all Cisco products.
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| C3945-CME-SRST/K9 |  C3900-SPE100/K9 |  CISCO3945-SEC/K9 |  C3900-SPE250/K9 |  CISCO3925E/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE / UL | IEEE 802.3 / IEEE 802.1Q | IEEE, FCC, CE | FCC / CE | FCC / CE / EAC |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | 16 inches | N/A | N/A | 18.0 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | FCC / CE | N/A | N/A | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM / EHWIC | EHWIC / NIM | EHWIC, NIM | EHWIC | EHWIC / NIM |
| Features | VPN / VoIP / Integrated Services / Redundancy | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN, Firewall, IPv6 Compatible | VPN / IPv6 Compatible / Firewall / POE / MPLS | VPN / IPv6 Compatible / Firewall / Modular / Integrated Services |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-mount / Chassis | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | N/A | 4 inches | N/A | N/A | 1.73 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / Data | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / Data |
| Interface Ports | RJ-45 / SFP | RJ-45 / SFP | RJ-45, SFP | RJ-45 / SFP | RJ-45 / SFP / Combo Ports |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 512 MB | 512 MB | 1 GB | 512 MB |
| Modular Slots Available | 3+ Slots | 3+ Slots | 3+ Slots | 3+ Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IPv4 / IPv6 | IPv4, IPv6, MPLS, QoS | IPv4 / IPv6 | IPv4 / IPv6 |
| Power | AC 290W | 150 W | 350 Watt | 250 W | 290 Watts |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco C3945-CME-SRST/K9 | Cisco C3900-SPE100/K9 | Cisco 3945 Integrated Services Router Security | C3900-SPE250/K9 | Cisco 3925E/K9 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI / SNMP / HTTP / HTTPS | SSH / Telnet / SNMP | SSH, Telnet, SNMP | CLI / SNMP / NetConf | Telnet / SSH / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing / N/A |
| Safety | N/A | UL / CE | N/A | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | No | Yes | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 2.5 Gbps | 100 Mbps | 75 Mbps | 0.25 Gbps | 0.48 Gbps |
| Use Case | Enterprise / Branch Office | Enterprise | Enterprise | Enterprise | Enterprise / Business |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / GRE / DMVPN / N/A |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN Ports | 2 WAN | 2 WAN | 2 WAN |
| Weight | N/A | 25 lbs | N/A | N/A | 17.6 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | 17 inches | N/A | N/A | 17.1 inches |
| Wireless Support | No | No | No | No | No |
3945 CME-SRST bundle provides seamless voice failover with reliable UC. Ideal for medium-sized branch offices.
Handles multiple endpoints efficiently. Stable call quality and easy deployment for office environments.
Predictable performance under load. Reliable Cisco build ensures uninterrupted communications.
Easy to manage with consistent uptime. Supports unified communications smoothly.
Strong voice bundle for branch offices. Ensures continuity and minimal downtime.
The Cisco 3945 Voice Bundle combines a 3945 Integrated Services Router, PVDM3-64 DSP module, FL-CME-SRST-25 failover license, and UC License PAK to deliver enterprise-grade voice, routing, and high-availability features in a single package.
Key features include support for up to 64 voice channels, Cisco Unified CME on-router call processing, SRST branch survivability, rich media services, and UC application licensing for up to 25 users.
The PVDM3-64 is a digital signal processor module that provides 64 channels of voice compression, conferencing, and transcoding for high-quality IP telephony and unified communications.
The FL-CME-SRST-25 license enables Cisco Unified CME to fall back to Survivable Remote Site Telephony (SRST) for 25 phones, ensuring continuous PSTN connectivity during WAN outages.
The UC License PAK grants rights for 25 Cisco Unified Communications applications, including voice mail, unified messaging, and advanced call control, with perpetual entitlement.
With PVDM3-64, the bundle supports up to 64 concurrent voice calls, including transcoding and conferencing, depending on codec and DSP allocation.
Supported codecs include G.711 μ-law/a-law, G.729a/b, G.726, and G.723, enabling low-bandwidth calls and interoperability with SIP and H.323 endpoints.
During WAN failure, SRST automatically reroutes calls to the PSTN via the local router, preserving essential telephony services until the connection is restored.
Yes. The router runs Cisco Unified CME natively, providing on-premises call processing for up to 25 IP phones without requiring an external call manager.
The 3945 supports dual integrated fixed power supplies with optional DC modules, offering redundancy and 120–240 VAC or –48 VDC input.
Minimum requirements include Cisco IOS Software, 1 GB RAM, PVDM3-64 installed, FL-CME-SRST-25 license, and appropriate UC License PAK for 25 users.
Mount the router, install the PVDM3 module, apply FL-CME-SRST-25 and UC License PAK certificates, upload Cisco IOS, and configure CME and SRST profiles via CLI.
Yes. You can add PVDM3 modules up to the platform maximum and purchase additional SRST licenses to expand simultaneous call and user capacity.
Cisco provides a limited lifetime hardware warranty, one-year software updates, and optional SMARTnet for 24/7 technical support and expedited replacement.
Ideal for medium-sized branch offices requiring integrated voice, data, and resiliency, with centralized call control and local survivability during WAN outages.
Authorized Cisco partners and resellers offer this bundle. Contact your local Cisco distributor for pricing, delivery, and custom configuration services.